public class test2 {
    public static void main(String[] args) {
        int s =100;
        String s1=String.valueOf(s);
        System.out.println(s1);

        String s2=s+"hello";
        System.out.println(s2);


        System.out.println(5/2);
        System.out.println((float)5/2);
        System.out.println(5/(float)2);
        System.out.println((float) (5/2));
    }
}
